Pneumatic tire tread and buttress



FIG. 1 is a perspective view of a pneumatic tire tread and buttress showing our new design, it being understood that the pattern is repeated throughout the circumference of the tread and buttress, the opposite side being substantially the same as that shown;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof; and,

FIG. 4 is an enlarged fragmentary front elevational view thereof. 

The ornamental design for a pneumatic tire tread and buttress, as shown and described. 